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US 4,367,163 AGranted
Silica-clay complexes
AssigneeResearch Corporation
InventorsThomas J. Pinnavaia, Max M. Mortland, Tadashi Endo
Life of this patent
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Abstract
A clay composition comprising silica intercalated between the interlayers of the clay.
Claims28
A clay composition, comprising:
- silica intercalated between the interlayers of said clay.
A method for preparing clay intercalated with silica, comprising:
- exchanging at least a portion of the native metal ions of a swelling clay with complex silicon ions;
- and
- hydrolyzing said complex silicon ions.
A method for preparing clay intercalated with silica, comprising:
- reacting a polyhalosiloxane at the native metal ion sites of a swollen clay;
- and
- hydrolyzing said reacted polyhalosiloxane.
Dependencies are inferred from the claim text.